CN105372132B - A kind of gas cylinder valve housing pressure test system and method - Google Patents
A kind of gas cylinder valve housing pressure test system and method Download PDFInfo
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- CN105372132B CN105372132B CN201510725607.0A CN201510725607A CN105372132B CN 105372132 B CN105372132 B CN 105372132B CN 201510725607 A CN201510725607 A CN 201510725607A CN 105372132 B CN105372132 B CN 105372132B
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- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims description 7
- 239000002828 fuel tank Substances 0.000 claims abstract description 11
- 210000004534 cecum Anatomy 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 100
- 230000006698 induction Effects 0.000 claims description 18
- 238000002474 experimental method Methods 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 239000010729 system oil Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
A kind of gas cylinder valve housing pressure test system, pressurized cylinder is driven including oil, the oil, which drives pressurized cylinder, to be included by cylinder tube and end-cap assembly, cylinder barrel connector and base assembly, the cylinder body that supercharging cylinder barrel is in turn connected to form, piston made of stairstepping axle is set in the cylinder body, connected between the piston and cylinder body through support component and seal assembly, and the inner chamber of cylinder block is divided into left oil pocket successively by support component and seal assembly, right oil pocket, seepage reclaiming chamber, test(ing) medium chamber, the cecum of the supercharging cylinder barrel is provided with a radial direction through hole, the radial direction through hole communicates with the test(ing) medium chamber, and the radial direction through hole towards being installed at outer outlets, go out dielectric valve；The B mouths of one three position four-way directional control valve connect left oil pocket, and A mouths connect right oil pocket, and P mouths connect fuel tank, T mouths connection fuel tank through Oil pump electrical machinery group；Enter dielectric valve through ball valve connection test medium source, go out dielectric valve connection valve frock, and the output end for going out dielectric valve connects medium pool through Pneumatic valve.
Description
Technical field
The present invention relates to a kind of pressure test of small containers, especially a kind of Shell test of small-sized stainless valve,
Particularly a kind of gas cylinder valve housing pressure test system and method.
Background technology
With the extensive use of stainless steel material, more and more important or crucial small containers and valvelet are all selected
Stainless steel does material, to improve its corrosion resistance, extends its service life.When testing the valve of stainless steel,
There is clear and definite regulation to their test(ing) medium, used water chloride containing object amount should be no more than 100mg/L, it is impossible to be tried with oil
Test medium.
The Shell test of stainless valve is that valve pressure test predominantly detects one of project.Major valve on conventional art
The hydraulic pressure system of the Shell test of door is by the low-pressure pump of big flow and the high-pressure hydraulic pump of low discharge and pipeline and control valve group
Into.When detecting valve, test(ing) medium is first filled into valve body with the low-pressure pump of big flow, then with high pressure gas drive pressurized water
Pump injects water under high pressure into valve cavity, and test(ing) medium pressure reaches when presetting pressure, and high pressure gas drive booster water pump stops automatically
Only.But because the compressibility of gas is larger, the influence easily loaded of the responsiveness of cylinder.In low-speed motion, due to rubbing
The large percentage that power accounts for thrust is wiped, the low-speed stability of cylinder is not so good as hydraulic cylinder, and its power output is also smaller than hydraulic cylinder.For little Rong
For device, it is desirable to speed is slow and power output is big, preferably to use hydraulic drive, makes that compact-sized, inertia is small, impact it is small, easily
In realizing overload protection.Another Hydraulic Elements can lubricating by oneself, service life is longer.
The content of the invention
The technical problems to be solved by the invention are the pressure tests for small containers, are especially small-sized stainless valve
Shell test a kind of gas cylinder valve housing pressure test system and method is provided, it uses hydraulic drive, and compact-sized, used
Property it is small, impact it is small, can lubricating by oneself, service life is longer, fully meets test requirements document.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of gas cylinder valve housing pressure test system, it include oil drive pressurized cylinder, fuel tank, Oil pump electrical machinery group, three four
Logical reversal valve, ball valve, Pneumatic valve, medium pool and valve frock；The oil, which drives pressurized cylinder, to be included by cylinder tube and end-cap assembly, cylinder
The cylinder body for the inner hollow that cylinder connector is in turn connected to form with base assembly and supercharging cylinder barrel, the inner chamber of cylinder block set stairstepping
Piston made of axle, connected between the piston and cylinder body through support component and seal assembly, and the inner chamber of cylinder block is by support component
It is divided into left oil pocket, right oil pocket, seepage reclaiming chamber, test(ing) medium chamber totally 4 chambers successively with seal assembly, the supercharging cylinder barrel
Cecum is provided with a radial direction through hole, and the radial direction through hole communicates with the test(ing) medium chamber, and the radial direction through hole towards at outer outlets pairs
Title is provided with into dielectric valve and goes out dielectric valve；The left oil pocket that oil drives pressurized cylinder connects with the B mouths of three position four-way directional control valve, right oil pocket
Connected with the A mouths of three position four-way directional control valve, P mouth of the fuel tank through Oil pump electrical machinery group connection three position four-way directional control valve, three four
The T mouths connection fuel tank of logical reversal valve；It is described enter dielectric valve through ball valve connection test medium source, it is described go out dielectric valve connection valve work
Dress, and it is described go out dielectric valve output end through Pneumatic valve connect medium pool.
According to an embodiment of the invention, further optimization can also be made to the present invention, below the skill to be formed after optimization
Art scheme：
Preferably, the cylinder barrel connector is formed with base assembly by cylinder barrel connector and tube chamber welds with base, and on the base
At a distance to be provided with left travel switch, right travel switch, the stage casing of the piston is provided with the sense perpendicular to piston axial direction
Bar is answered, the induction rod is stretched out outside the cylinder body, and the piston driving induction rod moves together, is opened when moving to left and right stroke
Guan Shi, induction rod sends signal with the sensing of left and right travel switch, to control piston to be moved between left and right travel switch.
Preferably, the base is provided with proximity switch bearing, and the proximity switch bearing is provided with kidney-shaped mounting hole, should
The installation left travel switch, right travel switch in kidney-shaped mounting hole.The position of two travel switches can be as needed in the kidney-shaped
Adjusted in mounting hole.
Preferably, the cylinder tube and end-cap assembly are welded by cylinder tube and end cap, and the big end two of the piston
End face is all provided with fluted, and the inner face of end cap and the inner face of cylinder barrel connector also are provided with annular groove respectively.
Preferably, the inner chamber of mounting hole radial communication cylinder barrel connector, institute are provided with cylindrical among the cylinder barrel connector
State induction rod to stretch out outside the cylinder body from the mounting hole, with having a roundlet on the cylinder barrel connector of the mounting hole in 90 ° of directions
Hole is mutually passed to as leakage of oil Water Sproading mouth with the through hole on the base.
Preferably, radial screw bore and the axle on the left side of the cylinder barrel connector are provided with above the cylinder barrel connector
Communicated to aperture as right chamber hydraulic fluid port.
Preferably, the cylinder barrel connector left end is connected with cylinder tube, and right-hand member is connected with gland, and gland connection is in place
Afterwards, locked with locking nut.
Preferably, the openend installing of the supercharging cylinder barrel is oriented to swivel nut, and is oriented to installing piston in the inner groove of swivel nut
After small guide ring, with being pressurized the inwall of cylinder barrel through being threadedly coupled.
Preferably, the Oil pump electrical machinery group connects the P mouths of three position four-way directional control valve, and the output of the check valve through check valve
End connects the T mouths of three position four-way directional control valve through two-position four way change valve.
Based on same inventive concept, present invention also offers one kind to utilize above-mentioned gas cylinder valve housing pressure test system
The method for carrying out valve housing pressure test, it comprises the following steps：
a）Valve in valve frock, Pneumatic valve is closed, opens ball valve, test(ing) medium reaches experiment through entering dielectric valve
Dielectric cavity (d), after test(ing) medium chamber, reached through going out dielectric valve in the valve to be checked in valve frock；
b）When test(ing) medium chamber and valve cavity to be checked are full of medium, Oil pump electrical machinery group is opened, after initialization system oil pressure,
The pressure oil that Oil pump electrical machinery group is come is entered oil through three position four-way directional control valve and drive the left oil pocket of pressurized cylinder, right oil pocket oil return, promote and live
Plug moves right, and drives induction rod right lateral, is pressurized to test(ing) medium chamber, when reaching right travel switch, is tried in valve to be checked
Test medium and reach test pressure, Oil pump electrical machinery group works on, and maintains the pressure of test(ing) medium intracavitary constant, valve to be checked is carried out
Pressurize；
c）After pressurize reaches the stipulated time, three position four-way directional control valve commutation, the pressure oil that Oil pump electrical machinery group is come enters oil and driven
The right oil pocket of pressurized cylinder, left oil pocket oil return, piston is promoted to be depressurized to left movement, drive induction rod to left movement, test(ing) medium chamber, when
During close to left travel switch, test pressure discharges in valve to be checked, turns off Oil pump electrical machinery group, piston stop motion, Pneumatic valve is beaten
Open, experiment pipeline lays down test(ing) medium, completes experiment.
By said structure, the present invention inlet pressure different by setting left oil pocket, further according to the supercharging of plunger designs
Than using the linear motion of hydraulic drive piston, so as to provide different test(ing) medium pressure.
Had the beneficial effect that caused by the technology of the present invention：
1st, it is the pressure test of small containers, the especially Shell test for small-sized stainless valve provides a kind of pressure
Pilot system and control method.
2nd, hydraulic system and experiment pipeline are designed to independent loop by the present invention, can be achieved to system media and test(ing) medium
Different choice, to meet particular/special requirement.
3rd, the present invention is using hydraulic oil driving supercharging, and commutation is steady, inertia is small, impact is small, it is easy to accomplish overload protection.Separately
Hydraulic Elements can lubricating by oneself, service life is longer.
4th, the present invention is compact-sized, inertia is small, and impact is small, fully meets valve housing test requirements document, it is easy to accomplish automatic
Change.
Brief description of the drawings
Fig. 1 is gas cylinder valve housing pressure test systematic schematic diagram of the present invention；
Fig. 2 is the structure that present invention oil drives pressurized cylinder；
Fig. 3 is Fig. 2 top view；
Fig. 4 is Fig. 2 A-A sectional views
Fig. 5 is the structural representation of cylinder tube of the present invention and end-cap assembly；
Fig. 6 is the structural representation of movable bearing support component of the present invention；
Fig. 7 is the structural representation of cylinder barrel connector of the present invention and base assembly；
Fig. 8 is cylinder barrel connector top view in Fig. 7；
Fig. 9 is the structural representation of present invention supercharging cylinder barrel.
Embodiment
1）Gas cylinder valve housing pressure test system composition of the present invention is introduced：
With reference to figure 1, whole gas cylinder valve housing pressure test system mainly by fuel tank 1., oil absorption filter 2., oil pump electricity
Unit 3., check valve 4., system overflow valve Y1 5., system pressure table P1 6., system pressure sensor 7., three position four-way directional control valve
8., operating pressure overflow valve Y2 9., two-position four way change valve 10., oil drive pressurized cylinder, water inflow filter, ball valve, graded filter,
Pneumatic valve, medium pool, test pressure sensor, belt switch experiment precision pressure gauge, test gauge and valve frock composition.Its
8. middle three position four-way directional control valve is three-position four-way electromagnetic directional valve, it includes control coil DT1, DT2；Two-position four way change valve is 10.
For two-position four-way solenoid directional control valve, it includes control coil DT3.
With reference to shown in figure 2- Fig. 9, oil drives pressurized cylinder mainly by cylinder tube and end-cap assembly 1, movable bearing support component 2, cylinder barrel
Connector and base assembly 3, enter dielectric valve 4, go out dielectric valve 5, free flow coupling 6, piston 7, door 8, O-ring back-up ring 9, lead
To swivel nut 10, locking nut 11, gland 12, supercharging cylinder barrel 13, proximity switch bearing 14, induction rod 15, holding screw 16, packing ring
17th, hole with big squared circle 18, the big guide ring 19 of piston, hole back-up ring 20, the big Y-shaped ring 21 of axle, piston rod guide ring 22,
Small O-ring seals 23, big O-ring seals 24, piston small guide ring 25, the small Y-shaped ring 26 of axle, hole small squared circle 27, O shapes
Sealing ring 28, screw 29, plain washer 30, left travel switch 31, right travel switch 31 ' composition.
With reference to figure 5, cylinder tube and end-cap assembly 1 are welded by cylinder tube 33 and end cap 32.
With reference to figure 6, movable bearing support component 2 is welded by expansion bearing ring 35 and expansion bearing base 34.
With reference to figure 7, cylinder barrel connector is welded with base assembly 3 by cylinder barrel connector 36 and base 37.
With reference to figure 2, Fig. 5, the centre of end cap 32 has screw, and equipped with free flow coupling 6, the endoporus of free flow coupling 6 is a left side
Oil pocket a hydraulic fluid port, uniform 4 apertures in end face are fitting hole.The left end of cylinder tube 33 welds together with end cap 32, in right-hand member
Screw thread is together by a threaded connection with cylinder barrel connector 36.Internal piston 7 is stairstepping axle, big to hold both ends of the surface fluted,
Hold greatly it is cylindrical it is upper hole big squared circle 18, the big guide ring 19 of piston are housed, when 7 linear reciprocating motion in oil pocket of piston
Sealed between the oil pocket of left and right.The middle-end of piston 7 has a radial screw bore to be provided with induction rod 15, and piston 7 moves dynamic
Answer bar 15 to move together, when moving to diverse location, respectively with the left lateral on the proximity switch bearing 14 on base 37
Cheng Kaiguan 31, the sensing of right travel switch 31 ' send signal, to control piston 7 to move back and forth within the range.The proximity switch branch
Seat 14 is designed to kidney-shaped mounting hole, so as to adjustable left lateral journey switch 31, the position of right travel switch 31 ', makes piston 7 or so past
Accurate position or accurate commutation are parked in when moving again, effectively prevents piston 7 from being collided with cylinder barrel, improve the security of cylinder with
Service life.
Reference picture 2, Fig. 3, Fig. 7, cylinder barrel connector are welded with base assembly 3 by cylinder barrel connector 36 and base 37.
Cylinder barrel connector 36 is hollow stairstepping axle, and there is an external screw thread at both ends, it is middle it is cylindrical on be provided with the radial communication cylinder barrel of mounting hole 361 company
The inner chamber of junctor 36, induction rod 15 pass through the cylinder barrel connector 36 through the mounting hole 361.Have one in 90 ° of directions with mounting hole 361
Small sircle hole 362 is passed to as leakage of oil Water Sproading mouth C with the phase of through hole 371 on base 37.Have above the cylinder barrel connector 36
One radial screw bore 364 communicates with axial aperture 365 on the left side of the cylinder barrel connector 36, is filled on the screwed hole 364 straight-through
Pipe joint 6, the endoporus of the free flow coupling 6 is right oil pocket hydraulic fluid port.In the left end interior grooves of cylinder barrel connector 36 from left to right
It is sequentially arranged with：Hole back-up ring 20, door 8, axle big Y-shaped ring 21, piston rod guide ring 22, small O-ring seals 23 and O-ring
With back-up ring 9, they prevent right oil pocket b pressure oil from leaking mounted in being sealed between cylinder barrel connector 36 and piston 7.Cylinder
Cylinder connector 36 and the outer round recessed of the junction of cylinder tube 33 are equipped with big O-ring seals 24, in cylinder tube 33 and cylinder barrel connector
Sealed between 36.The left end external screw thread of cylinder barrel connector 36 is connected with cylinder tube 33, and external screw thread and the gland 12 of right-hand member connect
Connect, after connection in place, locked with locking nut 11.
As shown in Fig. 2, Fig. 9, supercharging cylinder barrel 13 is U-shaped multi-diameter shaft, and openend annular groove is built with axle with the small He of Y-shaped ring 26
The small squared circle 27 in hole, the inner groove of swivel nut 10 installing piston is oriented to after small guide ring 25, passes through screw thread and supercharging cylinder barrel 13
Openend inwall connection.Be pressurized cylinder barrel 13 cecum it is cylindrical on have the test(ing) medium of a radial direction through hole 131 and the supercharging cylinder barrel 13
Chamber d is communicated, and the exit of radial direction through hole 131 is symmetrically installed with into dielectric valve 4 through screw thread and goes out dielectric valve 5, and O-ring seals 28 exist
Radial direction through hole 131 and enter dielectric valve 4 or go out between dielectric valve 5 to seal.The experiment of radial direction through hole 131 and supercharging cylinder barrel 13
There is an aperture 132 to communicate between dielectric cavity d.
Enter dielectric valve 4 and go out dielectric valve 5 and formed by valve seat, stainless steel ball, compression spring, guide holder and back-up ring.Enter to be situated between
Matter valve 4 and to go out dielectric valve 5 be existing structure, thus do not make excessive introduction herein.
From Fig. 2, Fig. 3, present invention oil, which drives pressurized cylinder, left oil pocket a, right oil pocket b, seepage reclaiming chamber c, test(ing) medium
Chamber d totally 4 chambers.
As shown in figure 1, fuel tank 1. through oil absorption filter 2., Oil pump electrical machinery group 3., check valve 4. connect 3-position 4-way commutation
The oil inlet P of valve 8., the left oil pocket a that oil drives pressurized cylinder are connected to the B mouths of three position four-way directional control valve 8., right oil pocket b by pipeline
The A mouths of three position four-way directional control valve 8. are connected to by pipeline, the dielectric valve 4 that enters that oil drives pressurized cylinder connects through water inflow filter, ball valve
Logical test(ing) medium source, the dielectric valve 5 that goes out that oil drives pressurized cylinder connects valve frock, and this goes out the output end of dielectric valve 5 through backwater mistake
Filter, Pneumatic valve connection medium pool.Test pressure sensor, belt switch experiment precision pressure gauge, test gauge are installed on out
The output end of dielectric valve 5, automatically control and monitor for realizing.10. the output end of check valve 4. connects through two-position four way change valve
The T mouths of three position four-way directional control valve 8..The output end of the check valve 4. and system overflow valve Y1 5. and operating pressure overflow valve Y2 9.
Arrival end connection.And check valve output end 4. set system pressure table P1 6., system pressure sensor 7..
2）Working condition introduction of the present invention：
During experiment, gas cylinder valve housing in valve frock, Pneumatic valve is closed, opens ball valve, low pressure test (LPT) medium
（Water）Enter dielectric valve 4 from medium entrance D, under pressure medium effect, promote into stainless steel ball in dielectric valve and overcome spring
Valve is opened in the effect of power, and medium reaches test(ing) medium chamber d, after test(ing) medium chamber d, flows into out dielectric valve 5, promote out Jie
Stainless steel ball overcomes the effect of spring force in matter valve, and medium is reached in valve cavity to be checked through media outlet E, and by valve to be checked
Chamber is full of medium.
When oil drives the test(ing) medium chamber d of pressurized cylinder and valve cavity to be checked is full of medium, firing test program, oil is opened
3., the coil DT3 of two-position four way change valve 10. pump motor group is powered, 10. two-position four way change valve commutates, commutated through two-position four-way
The return line of valve 10. disconnects.Meanwhile fuel tank 1. in hydraulic oil by filter 2. enter Oil pump electrical machinery group 3., to check valve
4. then to system overflow valve Y1 5., manual adjustment system overflow valve Y1 5. initialization system pressure.Now, system pressure table P1 is 6.
Display system oil pressure, system pressure sensor 7. acquisition system oil pressure.It is powered when two-position four way change valve is tested 10., disconnects this section
Return line, stop powering off during experiment, connect pipeline, in order to avoid during Oil pump electrical machinery group error starting, piston can remain static, and protect
Protecting system.
Now, the coil DT2 of three position four-way directional control valve 8. is powered, 8. three position four-way directional control valve commutates, closing coil DT2
Hold oil circuit.8. the pressure oil that oil pump comes enters oil through three position four-way directional control valve and drives the left oil pocket a of pressurized cylinder, right oil pocket b oil returns, promote
Piston 7 moves right, and drives the right lateral of induction rod 15.Meanwhile manual adjustment system operating pressure overflow valve Y2 9. initialization system works
Make pressure.The pressure change of belt switch precision pressure gauge and test gauge is observed, belt switch precision pressure gauge is only used as verifying
Used during pressure, closing switch when normal.When close to right travel switch 31 ', test gauge reaches pressure needed for experiment.When
When reaching right travel switch 31 ', piston 7 stops moving right, and valve to be checked carries out pressurize.Pressurize is to after the stipulated time, three
8. four-way reversing valve commutates, the coil DT1 of three position four-way directional control valve 8. is powered, and coil DT2 power-off, the pressure oil that oil pump comes enters
Oil drives the right oil pocket b of pressurized cylinder, left oil pocket a oil returns, promotes piston 7 to drive induction rod 15 to left movement to left movement.When a close left side
During travel switch 31, piston 7 stops to left movement, and valve to be checked carries out release of pressure.
During experiment, coil DT3 is in "on" position all the time, and when coil DT2 is powered, coil DT1 power-off, oil drives supercharging
The left oil pocket a oil-feeds of cylinder, right oil pocket b oil returns, test(ing) medium chamber are in pressurized state.When test pressure P2 is raised to pressure needed for experiment
When, start pressurize, timing.To after the stipulated time, coil DT1 is powered for pressurize, and DT2 power-off, piston left lateral is retracted, system decompression,
Piston stop motion.Pneumatic valve is opened, pipeline release is tested, turns off Oil pump electrical machinery group 3., DT3 power-off, completes experiment.
Claims (9)
1. a kind of gas cylinder valve housing pressure test system, it is characterised in that drive pressurized cylinder, fuel tank (1.), Oil pump electrical machinery including oil
Group (3.), three position four-way directional control valve (8.), ball valve, Pneumatic valve, medium pool and valve frock；The oil, which drives pressurized cylinder, to be included by oil
Cylinder barrel and end-cap assembly（1）, cylinder barrel connector and base assembly（3）And supercharging cylinder barrel（13）The inner hollow being in turn connected to form
Cylinder body, the inner chamber of cylinder block set stairstepping axle made of piston（7）, through support component and sealing group between the piston and cylinder body
Part connects, and the inner chamber of cylinder block is divided into left oil pocket successively by support component and seal assembly（a）, right oil pocket（b）, seepage recovery
Chamber（c）, test(ing) medium chamber（d）Totally 4 chambers, the cecum of the supercharging cylinder barrel are provided with a radial direction through hole（131）, the radial direction through hole with
The test(ing) medium chamber communicates, and the radial direction through hole towards being symmetrically installed with into dielectric valve at outer outlets（4）With go out dielectric valve
（5）；Oil drives the left oil pocket of pressurized cylinder（a）Connected with the B mouths of three position four-way directional control valve, right oil pocket（b）With three position four-way directional control valve
A mouths connection, the fuel tank through Oil pump electrical machinery group connect three position four-way directional control valve P mouths, three position four-way directional control valve T mouths connection
Fuel tank；It is described enter dielectric valve through ball valve connection test medium source, it is described go out dielectric valve connection valve frock, and it is described go out dielectric valve
Output end through Pneumatic valve connect medium pool；The cylinder barrel connector and base assembly（3）By cylinder barrel connector（36）And base
（37）It is welded, and at a distance on the base is provided with left travel switch（31）, right travel switch（31’）, the work
Plug（7）Stage casing be provided with perpendicular to piston axial direction induction rod（15）, the induction rod is stretched out outside the cylinder body, and the piston
Induction rod is driven to move together, when moving to left and right travel switch, induction rod sends signal with the sensing of left and right travel switch,
To control piston to be moved between left and right travel switch.
2. a kind of gas cylinder valve housing pressure test system according to claim 1, it is characterised in that set on the base
There is proximity switch bearing（14）, and the proximity switch bearing is provided with kidney-shaped mounting hole, and the left side is installed in the kidney-shaped mounting hole
Travel switch（31）, right travel switch（31’）.
A kind of 3. gas cylinder valve housing pressure test system according to claim 1, it is characterised in that the cylinder tube and
End-cap assembly（1）By cylinder tube（33）And end cap（32）It is welded, and the piston（7）Big end both ends of the surface be equipped with it is recessed
Groove, the inner face of end cap and the inner face of cylinder barrel connector also are provided with annular groove respectively.
A kind of 4. gas cylinder valve housing pressure test system according to claim 2, it is characterised in that the cylinder barrel connection
Body（36）Mounting hole is provided with centre is cylindrical（361）The inner chamber of radial communication cylinder barrel connector, the induction rod is from the mounting hole
Stretch out outside the cylinder body, with having a small sircle hole on the cylinder barrel connector of the mounting hole in 90 ° of directions（362）With on the base
Through hole（371）Mutually pass to as leakage of oil Water Sproading mouth（C）.
A kind of 5. gas cylinder valve housing pressure test system according to claim 2, it is characterised in that the cylinder barrel connection
Radial screw bore is provided with above body（364）With the axial aperture on the left side of the cylinder barrel connector（365）Communicate as the right side
Chamber hydraulic fluid port（B）.
A kind of 6. gas cylinder valve housing pressure test system according to claim 3, it is characterised in that the cylinder barrel connection
Body left end and cylinder tube（33）Connection, right-hand member and gland（12）Connection, and after gland connection in place, locked with locking nut.
A kind of 7. gas cylinder valve housing pressure test system according to claim 1, it is characterised in that the supercharging cylinder barrel
Openend installing be oriented to swivel nut（10）, and it is oriented to the installing small guide ring of piston in the inner groove of swivel nut（25）Afterwards, with supercharging
The inwall of cylinder barrel is through threaded connection.
A kind of 8. gas cylinder valve housing pressure test system according to claim 1, it is characterised in that the Oil pump electrical machinery
Group connects the P mouths of three position four-way directional control valve through check valve, and the output end of the check valve connects three through two-position four way change valve
The T mouths of four-way reversing valve.
9. a kind of carry out the pressure-resistant examination of valve housing using any one of the claim 1-8 gas cylinder valve housing pressure test systems
The method tested, it is characterised in that comprise the following steps：
a）Valve in valve frock, ball valve is opened, closes Pneumatic valve, test(ing) medium reaches test(ing) medium through entering dielectric valve
Chamber (d), after test(ing) medium chamber, reached through going out dielectric valve in the valve to be checked in valve frock；
b）When test(ing) medium chamber and valve cavity to be checked are full of medium, Oil pump electrical machinery group is opened, after initialization system oil pressure, makes oil
The pressure oil that pump motor group is come enters oil through three position four-way directional control valve and drives the left oil pocket (a) of pressurized cylinder, right oil pocket (b) oil return, promotes
Piston moves right, and drives induction rod right lateral, is pressurized to test(ing) medium chamber, when reaching right travel switch, in valve to be checked
Test(ing) medium reaches test pressure, and Oil pump electrical machinery group works on, and the pressure of maintenance test(ing) medium intracavitary is constant, and valve to be checked enters
Row pressurize；
c）After pressurize reaches the stipulated time, three position four-way directional control valve commutation, the pressure oil that Oil pump electrical machinery group is come enters oil drive and is pressurized
The right oil pocket (b) of cylinder, left oil pocket (a) oil return, piston is promoted to be depressurized to left movement, drive induction rod to left movement, test(ing) medium chamber,
When close to left travel switch, test pressure discharges in valve to be checked, turns off Oil pump electrical machinery group, piston stop motion, Pneumatic valve
Open, experiment pipeline lays down test(ing) medium, completes experiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510725607.0A CN105372132B (en) | 2015-10-30 | 2015-10-30 | A kind of gas cylinder valve housing pressure test system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN105372132B true CN105372132B (en) | 2018-04-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107063874A (en) * | 2016-12-15 | 2017-08-18 | 哈尔滨飞机工业集团有限责任公司 | A kind of reservoir pressure fatigue test system |
| CN109655299B (en) * | 2019-01-16 | 2023-10-27 | 中铁第四勘察设计院集团有限公司 | Air source generating device and wind pressure test system comprising same |
| CN112483511A (en) * | 2020-12-08 | 2021-03-12 | 四川凌峰航空液压机械有限公司 | Variable pressure ratio hydraulic pressure boost test system |
| CN119959010B (en) * | 2025-01-22 | 2025-11-07 | 上海海立电器有限公司 | Shell pressure resistance test method and shell pressure resistance test apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU477658A1 (en) * | 1968-02-19 | 1984-05-23 | Предприятие П/Я А-7210 | Device for hydraulic testing of products |
| CN201203530Y (en) * | 2008-03-31 | 2009-03-04 | 上海敏泰液压件有限公司 | Supercharging device of emulsifiable solution valve integrated test stand |
| CN203323983U (en) * | 2013-07-23 | 2013-12-04 | 山东维科特液压控制技术有限公司 | Weld joint pressurization test bench |
| CN204458573U (en) * | 2015-02-14 | 2015-07-08 | 平顶山天安煤业股份有限公司 | A kind of hydraulic system of electromagnetic priority valve durability test |
| CN205091206U (en) * | 2015-10-30 | 2016-03-16 | 江南工业集团有限公司 | Gas cylinder valve casing withstand voltage test system |
-
2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU477658A1 (en) * | 1968-02-19 | 1984-05-23 | Предприятие П/Я А-7210 | Device for hydraulic testing of products |
| CN201203530Y (en) * | 2008-03-31 | 2009-03-04 | 上海敏泰液压件有限公司 | Supercharging device of emulsifiable solution valve integrated test stand |
| CN203323983U (en) * | 2013-07-23 | 2013-12-04 | 山东维科特液压控制技术有限公司 | Weld joint pressurization test bench |
| CN204458573U (en) * | 2015-02-14 | 2015-07-08 | 平顶山天安煤业股份有限公司 | A kind of hydraulic system of electromagnetic priority valve durability test |
| CN205091206U (en) * | 2015-10-30 | 2016-03-16 | 江南工业集团有限公司 | Gas cylinder valve casing withstand voltage test system |
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